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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF52

Wavelength: µm
 (0.340 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.16943454-0.0124379117λ^{2}+0.0322101116λ^{-2}+0.000181456299λ^{-4}+8.90652926\text{×}10^{-05}λ^{-6}-1.91933145\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 7.46e-06 1.78e-08 -1.51e-10 7.13e-07 6.48e-10 0.252
nd: 1.806099
Vd: 40.945389
glass_code: 806410
density: 4.45 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.8e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 7.2e-06 K-1
dPgF: -0.005
climatic_resistance: 1.0

References

CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

CDGM Glass Co., Ltd.

CDGM Glass Co., Ltd. is a leading optical glass supplier in China with a worldwile distribution network.

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